WASHINGTON — The Air Force is considering changing how it evaluates officers who are up for promotion. According to a draft proposal that will be debated in the coming months, mid-grade officers in fields like space, nuclear missiles and cybersecurity will have a better chance of getting promoted than under the current system.“We are revising promotion guidance to try to align with what we really value,” Air Force Secretary Heather Wilson said May 16 during a breakfast meeting with reporters.Wilson is scheduled to step down May 31 to take a job as president of the University of Texas El Paso. Undersecretary of the Air Force Matt Donovan will serve as acting secretary until a replacement for Wilson is selected.In her final two weeks in office, Wilson and Chief of Staff Gen. David Goldfein are expected to roll out a plan to introduce a new promotion system that breaks up the pool of eligible officers into six “competitive categories” — air operations and special warfare; nuclear and missile operations; space operations; information warfare; combat support; and force modernization.Currently only Air Force lawyers, chaplains and medical professional compete for promotions within their own categories. Members of the JAG ...